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Conversion of canola oil to various hydrocarbons over Pt/HZSM‐5 bifunctional catalyst
Author(s) -
Katikaneni Sai P. R.,
Adjaye John D.,
Bakhshi Narendra N.
Publication year - 1997
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.5450750215
Subject(s) - canola , catalysis , hydrocarbon , space velocity , chemistry , olefin fiber , gasoline , organic chemistry , chemical engineering , selectivity , food science , engineering
Canola oil conversion was studied at atmospheric pressure over Pt/HZSM‐5 catalyst (0.5 mass% Pt) in a fixed bed micro‐reactor. The operating conditions were: temperature range of 400−500°C, weight hourly space velocity (WHSV) of 1.8 and 3.6 h −1 and steam/oil ratio of 4. The objective was to optimize the amount of gasoline range hydrocarbons in the organic liquid product (OLP) and the selectivity towards olefins and isohydrocarbons in the gas product. The gas yields varied between 22–65 mass% and were higher in the presence of steam compared to the operation without steam. The olefin/paraffin mass ratio of C 2 ‐C 4 hydrocarbon gases varied between 0.31–0.79. The isohydrocarbons/ n ‐hydrocarbons ratio was higher with Pt/HZSM‐5 (1.6–4.8) compared with pure HZSM‐5 catalyst (0.2–1.0). The OLP yields with Pt/HZSM‐5 (20–55 mass% of canola oil) were slightly lower compared to HZSM‐5 (40–63 mass% of canola oil) under similar conditions. The major components of OLP were aliphatic and aromatic hydrocarbons. A scheme postulating the reaction pathways for the conversion of canola oil over Pt/HZSM‐5 catalyst is also presented.